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emqx/changes/v5.0.12-en.md

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v5.0.12

This version included a refactoring of MQTT bridge config. The older version config file created from v5.0.11 or earlier will be converted to according to the new schema.

Please note, the request body of /bridges API to configure MQTT brdige is changed in a incompatible way.

Enhancements

  • Disable global garbage collection by node.global_gc_interval = disabled #9418。

  • Improve the CLI to avoid waste atom table when typing erros #9416.

  • Start building MacOS packages for Apple Silicon hadrdware #9423.

  • Remove support for setting shared subscriptions using the non-standard $queue feature #9412. Shared subscriptions are now part of the MQTT spec. Use $share instead.

  • Refactor authn API by replacing POST /authentication/{id}/move with PUT /authentication/{id}/position/{position}. #9419. Same is done for /listeners/{listener_id}/authentication/id/....

  • Redesign /rules API to make metrics a dedicated resources rather than being included with every response #9461.

  • Add more PSK ciphers support #9505.

  • Improve emqx_retainer write performance: get rid of transactions on write #9372.

  • HTTP client library ehttpc upgraded from 0.4.0 to 0.4.2 #9520.

  • Add handshake_timeout option to MQTT SSL listener #9502.

  • Upgrade dashboard to v1.1.3.

Bug fixes

  • Fix that the obsolete SSL files aren't deleted after the ExHook config update #9432.

  • Fix doc and schema for /trace API #9468.

  • Return 404 for /telemetry/data in case it's disabled #9464.

  • Fix some potential MQTT packet parse errors #9477.

  • Fixed EMQX Helm Chart deployment error #9509.

    • Fixed the Discovery error: no such service error occurred during helm chart deployment, resulting in an abnormal discovery of cluster nodes.
    • Fixed issue that caused EMQX Helm Chart to fail when modifying some of EMQX's configuration items via environment variables.

  • Fix shadowing 'client.authenticate' callbacks by emqx_authenticator. Now emqx_authenticator passes execution to the further callbacks if none of the authenticators matches #9496.

  • Return 400 if query param node is not a known node in /trace/:id/download?node={node} #9478.

  • POST /traces to return 409 in case of duplicate #9494.